AS1358-BTTT-26

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AS1358-BTTT-26 is a low-dropout linear regulator from the AS1358/AS1359 series, manufactured by ams-OSRAM USA INC. It delivers a fixed output voltage of 2.6V with a maximum continuous load current of 150mA. The device operates within an input voltage range of 2V to 5.5V and achieves a typical dropout voltage of 70mV at 150mA. Key electrical characteristics include an ultra-low output noise of 9µVRMS (100Hz to 100kHz), a power-supply rejection ratio exceeding 80dB up to 10kHz, and a quiescent current of 40µA. It incorporates integrated overcurrent and thermal protection mechanisms.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low noise architecture achieving 9µVRMS output noise for sensitive analog circuits
• High power-supply rejection ratio exceeding 80dB across critical frequency ranges
• Integrated P-channel MOSFET pass transistor enabling extremely low quiescent current consumption
• Operational stability guaranteed with small-value ceramic capacitors

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Mobile phones and wireless communication devices
• Personal Digital Assistants (PDAs) and handheld computers
• Bluetooth portable radios and accessories
• Digital cameras and personal audio devices

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify that the specific ordering code matches the required 2.6V output voltage and 150mA load rating. Confirm package type compatibility with the TSOT23 5-pin footprint. Ensure environmental compliance requirements align with RoHS standards. Review absolute maximum ratings against system operating conditions to prevent damage.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when designing battery-powered systems requiring precise voltage regulation with minimal power loss. The low dropout characteristic extends battery life near end-of-life voltages. The ultra-low noise profile makes it suitable for powering RF sections or precision sensors where signal integrity is critical. Verify thermal dissipation capabilities based on the PCB layout and ambient temperature.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AS1358/AS1359 family of ultra-low-noise LDOs designed for space-constrained applications. The AS1358 variant specifically provides 150mA output capability, distinguishing it from the higher-current AS1359 model. Both share identical pinouts and architectural features, differing primarily in maximum load current specifications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Cross-reference tools indicate compatible alternatives exist among other manufacturers offering similar low-noise LDO specifications. Verify functional equivalence regarding output voltage accuracy, quiescent current, and package dimensions before substitution.